Five components of intelligent security anti-theft alarm system

In order to be able to protect the safety of homes more comprehensively, many homes have installed smart security systems, including smart door locks, smart cat eyes, and smart cameras. Once these security products sense the invasion of the outside world, they will activate the alarm device. So what is the composition of the intelligent security anti-theft alarm system? Xiaobian This is popular for everyone.

1, infrared intrusion detector

Infrared intrusion detectors are mainly used to prevent illegal intrusion. Detectors generally use pyroelectric human infrared sensors. The working principle is mainly human body infrared monitoring. In fact, there are objects in the natural world, such as the human body, flame, ice, etc., which emit infrared light, but their wavelengths are different.

Using different wavelengths, the body's infrared radiation constantly changes the temperature of the pyroelectric body, causing it to output one after another corresponding signal. The characteristic of the pyroelectric human body infrared sensor is that it only when the external radiation causes its own temperature to change. Only a corresponding electrical signal is given. When the temperature change becomes stable, there will be no signal output. Therefore, the signal generation will not change with its own temperature, but it will be sensitive to the moving human body and thus detected. The movement of the human body.

2, door magnetic, window magnetic sensor

The door magnetic system is also one of the more widely used security systems, generally including door magnets and window magnets. Door magnetism and window magnetism are the abbreviation of door magnet switch and window magnet switch. Mainly by the door magnetic body and magnetron strips.

When the deployment is started, the corresponding signal will be generated once the magnet bar and the door magnetic body are detached, and transmitted to the device through the network to remind.

3, smoke detector

Such detectors are mainly used to detect visible or invisible combustion products and initial fires with slow fires. There are four types of ion, photoelectric, laser, and infrared beam types.

4, gas sensor

A gas sensor is a converter that converts a certain gas volume fraction into a corresponding electrical signal. The probes use a gas sensor to condition the gas sample. This usually includes removing impurities and interfering gases, drying or cooling the instrument display section. A gas sensor is a device that converts information such as composition and concentration of gas into information that can be used by people, instruments, computers, and so on!

5, water immersion sensor

The water immersion sensor is based on the principle of liquid conduction, using the electrode to detect whether water is present, and then converting the sensor into a dry contact output. It is generally divided into contact type flood detectors and non-contact type flood detectors. Contact immersion detectors use liquid conductivity principles for detection. Non-contact water immersion detectors use light to detect the refraction and reflection of different media sections.

The above is an integral part of the intelligent security alarm system. Along with the development of the Internet of Things technology, intelligent security systems are widely used in enterprises and residential communities. To learn more about smart security systems, you can follow Wisdom, or leave us a message at the bottom of the article.

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